Erza is another character that might be paired with Natsu in different fanfictions. Erza's strong and strict personality could contrast with a different version of Natsu in interesting ways. For example, if Natsu is more timid in the fanfiction, Erza could be the one to push him to be braver, or they could be on a mission together where their skills complement each other in unexpected ways.
Lucy is often paired with Natsu in many fanfictions. Their relationship can be explored in different ways in these fan - created stories. It could be a more romantic relationship than in the original series, or they could have a different kind of partnership, like being more equal in power or having different goals they pursue together.
Gray is also a common character paired with Natsu in these fanfictions. Their rivalry might take on new forms. Instead of just competing in terms of strength, they could be rivals in other aspects such as who can master a new type of magic first. And they may also end up having to work together in more complex and unique situations.
Erza is frequently paired with Natsu in these fanfictions. Given her strong and leadership - like qualities, she can take charge in agent - related situations, and Natsu can be the more impulsive force. Their interactions can range from Erza scolding Natsu for his reckless actions to them having deep conversations about their responsibilities as agents. Wendy is also a character that can be paired with Natsu. Her healing magic can be crucial during dangerous agent missions, and she looks up to Natsu, which can create a sweet and protective relationship in the fanfiction.
Gray is also a popular character to be paired with Natsu in these fanfictions. Their friendly rivalry can take on new dimensions when Natsu travels back in time. They could end up working together in unexpected ways in the past.
Gray would be one of the main characters to interact with Natsu. Their friendly rivalry is well - known in Fairy Tail. Makarov, as the guild master, would also have an important role in interacting with Natsu. He might give Natsu some important tasks or just have a grandfatherly chat with him about his return.
Gray would also be important. There could be a rivalry - turned - friendship aspect where Gray, who has his own ice - making powers, and Natsu, as a dragon, have to learn to work together. Maybe they compete in a friendly way to see whose powers are more useful in different situations.
Seilah is also a main character in this context. She has her own set of powers and a rather complex personality in the Fairy Tail universe, which can be further explored in fanfiction.
Lucy could be a main character. She was always close to Natsu in the original Fairy Tail. So when Natsu returns as an 'ex' and meets the guild again, she would likely play a big role in how he is received and in the development of the story.
Gray is another character. His ice - magic can complement Natsu's fire - magic. They might team up to fight enemies or overcome obstacles in the way of saving Fairy Tail. Sometimes they bicker while doing so, which adds some humor to the story.
Wendy is often paired with Chelia in fanfiction. Since they are both Dragon Slayers, their connection in the story can be further developed in fan - made stories. They might go on adventures together or help each other out in tough situations.
Lucy might also be a common character. Her celestial spirit magic could interact in interesting ways with the glittery magic of the Fairy Glitter world in the fanfiction. For example, she could summon spirits to help Natsu in his adventures there.
Obviously, Natsu is one of the main characters. He is often the center of the action in these fanfictions. Then there are the female characters from Fairy Hills, like Lucy. She usually plays an important role, maybe as Natsu's partner or as someone who gives him advice on the mysteries of Fairy Hills.